Global Patent Index - EP 0440548 A3

EP 0440548 A3 19931208 - MIGRATION-RESISTANT COPPER ALLOY FOR TERMINAL AND CONNECTOR USES HAVING EXCELLENT SPRING CHARACTERISTICS, STRENGTH AND CONDUCTIVITY

Title (en)

MIGRATION-RESISTANT COPPER ALLOY FOR TERMINAL AND CONNECTOR USES HAVING EXCELLENT SPRING CHARACTERISTICS, STRENGTH AND CONDUCTIVITY

Publication

EP 0440548 A3 19931208 (EN)

Application

EP 91400200 A 19910129

Priority

JP 1971990 A 19900130

Abstract (en)

[origin: EP0440548A2] Disclosed herein is a migration-resistant copper alloy for terminal and connector uses having excellent spring characteristics, strength and conductivity which contains 0.4 to 4.0% by weight of Ni, 0.1 to 1.0% by weight of Si, 1.0% (exclusive) to 5.0% (inclusive) by weight of Zn, 0.05 to 0.5% by weight of Mg, 0.1 to 0.5% by weight of Sn, and 0.001% (inclusive) to 0.01% (exclusive) by weight of at least one of Cr, Ti and Zr, the balance being Cu and unavoidable impurities. The copper alloy is excellent in softening resistance, migration resistance, stress relaxation properties, corrosion resistance, etc. as well as spring characteristics, strength and conductivity, and is suitable for terminals and connectors.

IPC 1-7

H01R 13/03; H01B 1/02; C22C 9/06

IPC 8 full level

C22C 9/06 (2006.01); H01B 1/02 (2006.01); H01R 13/03 (2006.01)

CPC (source: EP)

C22C 9/06 (2013.01); H01B 1/026 (2013.01); H01R 13/03 (2013.01)

Citation (search report)

  • [XP] US 4971758 A 19901120 - SUZUKI TAKESHI [JP], et al
  • [A] EP 0189637 A1 19860806 - KOBE STEEL LTD [JP]
  • [A] FR 2338585 A2 19770812 - OLIN CORP [US]
  • [X] DATABASE WPI Week 8933, Derwent Publications Ltd., London, GB; AN 89-237865 & JP-A-1 172 539 (MITSUBISHI)
  • [X] DATABASE WPI Week 8908, Derwent Publications Ltd., London, GB; AN 89-056936 & JP-A-1 008 237 (MITSUBISHI)
  • [A] DATABASE WPI Week 8741, Derwent Publications Ltd., London, GB; AN 87-287482 & JP-A-62 199 741 (KOBE STEEL)
  • [A] DATABASE WPI Week 8945, Derwent Publications Ltd., London, GB; AN 89-327797 & JP-A-1 242 740 (MITSUBISHI)

Designated contracting state (EPC)

FR GB NL

DOCDB simple family (publication)

EP 0440548 A2 19910807; EP 0440548 A3 19931208; JP 2977845 B2 19991115; JP H03226536 A 19911007

DOCDB simple family (application)

EP 91400200 A 19910129; JP 1971990 A 19900130